King Bhumibol Adulyadej (King Rama IX) foresaw the significance of plant genetic conservation prior to a recognition of the terms “Biological Diversity” and “Conservation” in Thailand. During the trip to Klai Kang Won Palace, A. Hua Hin, Prachuap Khiri Khan Province in 1960, he passed through A. Tha Yang, Phetchaburi Province and noticed many Yang Na trees (Dipterocarpus alatus). Therefore, he had royal words to collect the seeds to plant at Phra Tamnak Piam Suk, Klai Kang Won Palace, and grow the seedlings at Royal Chitralada Projects to study. In 1985, King Rama IX gave a royal word to conserve jackfruit tress around the Grand Palace and initiated the plant conservation project in the palaces by tissue culture. Later in 1986, he had the royal idea to conserve and breed rattan palms and arrange the herbal garden in Royal Chitralada Projects area. Her Royal Highness Princess Maha Chari Sirindhorn carried on the plant conservation project by having the royal idea and asked Lord Chamberl...